[Bug 551782] Re: Not able to dist-upgrade, "calculating changes" can't solve dependencies and fail

[Rolf Leggewie]

lucid has seen the end of its life and is no longer receiving any
updates. Marking the lucid task for this ticket as "Won't Fix".

** Changed in: update-manager (Ubuntu Lucid)
       Status: Confirmed => Won't Fix

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Title:
  Not able to dist-upgrade, "calculating changes" can't solve
  dependencies and fail

Status in update-manager package in Ubuntu:
  Confirmed
Status in update-manager source package in Lucid:
  Won't Fix

Bug description:
  Binary package hint: update-manager

  I'm using Ubuntu Karmic, 9.10, and trying to upgrade to Lucid using
  update-manager or do-release-upgrade fails with the following message:

  {{{
  Checking for a new ubuntu release
  Done Upgrade tool signature
  Done Upgrade tool
  Done downloading            
  extracting 'lucid.tar.gz'
  authenticate 'lucid.tar.gz' against 'lucid.tar.gz.gpg' 

  Reading cache

  Checking package manager
  Reading package lists: Done
  Reading state information: Done
  Reading state information: Done
  Reading state information: Done
  Done downloading                                                                                                                                                                                                                                                               
  Reading package lists: Donem lucid-backports/universe Packages: 92                                                                                                                                                                                                             
  Reading state information: Done
  Reading state information: Done
  Reading state information: Done

  Updating repository information
  WARNING: Failed to read mirror file
  Done downloading            

  Checking package manager
  Reading package lists: Done
  Reading state information: Done
  Reading state information: Done
  Reading state information: Done

  Calculating the changes

  Calculating the changes

  Could not calculate the upgrade

  An unresolvable problem occurred while calculating the upgrade:
  E:Error, pkgProblemResolver::Resolve generated breaks, this may be
  caused by held packages.

  This can be caused by:
  * Upgrading to a pre-release version of Ubuntu
  * Running the current pre-release version of Ubuntu
  * Unofficial software packages not provided by Ubuntu

  If none of this applies, then please report this bug against the
  'update-manager' package and include the files in
  /var/log/dist-upgrade/ in the bug report.

  
  Restoring original system state

  Aborting
  Reading package lists: Done
  Reading state information: Done
  Reading state information: Done
  Reading state information: Done
  }}}

  update-manager version is 1:0.126.9

  Despite the fact it says the system was restored to the original
  state, my sources.list has the lucid entries, instead of the karmic
  ones I had before the upgrade attempt.

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